Nick Gordon officially served with $10 million lawsuit on behalf of Bobbi Kristina Brown

Bobbi Kristina Brown's boyfriend, Nick Gordon, was officially served with a $10 million lawsuit on Sunday in Florida. The civil lawsuit, filed on behalf of the only daughter of the late Whitney Houston and Bobbi Brown, accuses him of both physically assaulting and stealing thousands from her.

Gordon, 25, was served at a Starbucks in Longwood, Florida. In a video obtained by The New York Daily News, a process server can be seen giving him a manila envelope, to which he simply replies, "Thank you." When a bystander inquires about the envelope, Gordon says, "I have no idea." He then starts scrolling through his cellphone.

Photos of Bobbi Kristina through the years:

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Bobbi Kristina Through the Years

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Nick Gordon officially served with $10 million lawsuit on behalf of Bobbi Kristina Brown

Bobbi Kristina, then 1 years old, was the apple of Whitney Houston and Bobby Brown's eye at an awards show. (Photo by Ron Wolfson/The LIFE Images Collection/Getty Images)

Whitney Houston and Bobby Brown were all smiles as they carried their baby girl to Bobby's 25th Birthday Party on February 4, 1994 at Tavern on the Green in New York City. (Photo by Ron Galella, Ltd./WireImage)

Just mama and baby! Whitney whisked her tiny tot through LAX airport during a 1995 outing. (Photo by Ron Galella, Ltd./WireImage)

The family hits the town! Bobby and Whitney head to New York City with Bobbi Kristina in 1995. (Photo by Ron Galella, Ltd./WireImage)

Like mother like daughter. Whitney and Bobbi Kristina dressed in identical white suits for the New York City premiere of Whitney's film,"The Preacher's Wife" in 1996.

(Photo by Ron Galella, Ltd./WireImage)

Everybody's matching! The family color-coordinated their black and white ensembles to attend the Fourth Annual International Achievement in Arts Awards in 1998 in Beverly Hills, California. (Photo by Ron Galella, Ltd./WireImage)

She's mommy's girl. Whitney Houston brought her daughter up on stage during a concert in 1999 in New York City. (Photo by L. Busacca/Larry Busacca/Wireimage)

Later during the same show, the entire family hit the stage. (Photo by L. Busacca/Larry Busacca/Wireimage)

The family got together for a promotional shot for their NBC show, "Being Bobby Brown." Bobbi Kristina posed on the right and held the family dog. (Photo by F. Scott Schafer/NBC/NBCU Photo Bank via Getty Images)

Whitney Houston leaned down to plant a big one on her baby girl during the 2001 BET Awards. (Photo by M. Caulfield/WireImage)

Disney day! The whole family headed to the happiest place on earth ahead of the "The Priness Diaries 2: Royal Engagement" premiere. (Photo by Lee Celano/WireImage)

Bobbi Kristina and Whitney matched their outfits for the 2009 American Music Awards and looked happier than ever together. (Photo by Kevin Mazur/AMA2009/WireImage)

Talent runs in the family. Whitney brought Bobbi Kristina up on stage during a performance in 2009 to do a duet. Seems appeared to be on the upswing for the often troubled family.(Photo by Ben Hider/Getty Images)

Romance is in the air! Bobbi Kristina Brown hit 'The Houstons: On Our Own' series premiere party in 2012 with her "adopted brother" turned boyfriend, Nick Gordon. (Photo by Shareif Ziyadat/FilmMagic)

Following the death of her mother in February 2012, Nick Gordon and Bobbi Kristina Brown became closer than ever and cuddled up at the 'We Will Always Love You: A GRAMMY Salute to Whitney Houston' concert in October 2012. (Photo by Christopher Polk/WireImage)

The happy couple reportedly became engaged in 2013 and were all smiles at an event ahead of the 2014 Grammy Awards. This was one of the last public photos taken of the pair before Bobbi Kristina was found unresponsive in a bathtub at her Georgia home on January 31, 2015. ( Photo by Tiffany Rose/WireImage)

Gordon has rarely been seen since news broke that 22-year-old Bobbi Kristina was transferred to a hospice in Atlanta last month, as her condition continues to deteriorate. Bobbi Kristina's court-appointed conservator, Bedelia Hargrove, filed the lawsuit against Gordon in Fulton County Superior Court on June 24, which means it's taken almost three weeks to serve Gordon. His last sighting was on June 28 in Florida.

ET learned last month that Gordon has assembled a very well-known legal team to face the lawsuit. Atlanta criminal defense attorney Joe Habachy, Gordon's lead lawyer, was preparing to bring in famous attorney Jose Baez --- who's best-known for serving as the lead defense attorney for Casey Anthony -- as well as TJ Ward, one of the private investigators who worked on the disappearance of Natalee Holloway, sources close to Gordon's legal team told ET.

In addition to the domestic violence claims, the lawsuit alleges that Bobbi Kristina set up a meeting with an unnamed person on Jan. 31 to discuss that Gordon was "not the man she thought he was," and was later found unresponsive in a bathtub on the same day, "face down, with her mouth swollen and another tooth knocked out."